ENERGY STORAGE AND DISSIPATION OF A NONLINEAR SOIL USING TRANSFORM TECHNIQUES OF VISCOELASTICITY

ENERGY-STORAGE AND ENERGY-DISSIPATION PROPERTIES OF A COHESIVE SOIL ARE DETERMINED FROM CREEP RESPONSE DATA USING THE ONE-SIDED FOURIER TRANSFORM AND ARE EXPRESSED IN TERMS OF THE COMPLEX COMPLIANCE AND LOSS TANGENT OF VISCOELASTICITY. THE SOIL RESPONSE IS NONLINEAR. AN APPROXIMATE METHOD OF EVALUATING THE TRANSFORMS WITH DIGITAL COMPUTER TECHNIQUE IS USED. COMPARISON OF STATIC AND DYNAMIC RESPONSE IS PRESENTED THROUGH THE TRANSFORMATION FROM THE TIME DOMAIN TO THE FREQUENCY DOMAIN. AT EACH APPLIED STRESS LEVEL, LARGE-AND SMALL-TIME PLATEAU REGIONS ARE CONNECTED WITH A TRANSITION REGION SHOWING AN INCREASE IN COMPLEX COMPLIANCE WITH DECREASE IN FREQUENCY. COMPLEX COMPLIANCE INCREASES WITH INCREASED STRESS LEVEL FOR CONSTANT FREQUENCY OR TIME. THE LOSS TANGENT VERSUS LOG OF TIME RELATION IS A SINGLE-PEAK, NONSYMMETRIC, BELLSHAPED DISTRIBUTION WHICH DECAYS FASTER AT HIGHER FREQUENCY. EXPERIMENTALISTS SEEKING MATHEMATICAL MODELS FOR REPRESENTING SOIL PROPERTIES WILL FIND PAPER OF GREAT INTEREST. /AMR/

  • Supplemental Notes:
    • Vol 3, Part 1, PP 285-294
  • Corporate Authors:

    Developments In Mechanics

    ,    
  • Authors:
    • Kondner, R L
    • Ho, M M
  • Publication Date: 1967

Subject/Index Terms

Filing Info

  • Accession Number: 00235449
  • Record Type: Publication
  • Source Agency: Applied Mechanics Review
  • Files: TRIS
  • Created Date: May 19 1994 12:00AM